Roller Blinds Components 1. Up Rod: Aluminum Alloy 2.Down Rail: PVC, Aluminum ... 3. Ball Chain: Placstic, Metal,stainless 1.specifications name Roller Blinds Componentsitem no.YZ-005-14Up RodAluminum AlloyDown Rail PVC, Aluminum ... , 0.6mm, 1.2mm, 1.5mmDiameter28mm, 38mm, 50mm, 70mmUsedRoller blinds, Shangri La blinds, Zebra BlindsUp Rod: 28mm, 38mm, 50mmUnit Control Down Rail ...